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Antennas
6.3 SIMATIC RF620A
SIMATIC RF600
236
System Manual, 11/2018, J31069-D0171-U001-A21-7618
6.3.6.3
Antenna pattern FCC
Directional radiation pattern FCC
The directional radiation pattern is shown for nominal alignment and a center frequency of
915 MHz.
Figure 6-19 Reference system
The half-power beam width of the antenna is defined by the angle between the two -3 dB
points (corresponding to half the power in relation to the maximum power). Which range (in
%) corresponds to the dB values in the patterns can be obtained from this table.
Note that the measurements presented graphically below were carried out in a low-reflection
environment. Low deviations can therefore occur in a normally reflecting environment.
Содержание SIMATIC RF640A
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Страница 332: ...Antennas 6 8 SIMATIC RF680A SIMATIC RF600 332 System Manual 11 2018 J31069 D0171 U001 A21 7618 ...
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